As CEO, Vallis (pictured) assumes leadership of Hypothesis’ daily operations to steer the Insights Association Top 50 firm into its next generation of growth. She joined Hypothesis in 2014 and is a former GM at Kantar Millward Brown.

Vallis will continue to position, scale and grow Hypothesis as insights partner to a wide cross-section of brands, with an emphasis on custom creative approaches and strategies designed to spark action within their organisations.

She succeeds co-founder Jeff Seltzer, who will join founder Maria Stark as executive board member. Seltzer will continue to actively support the company as a strategic advisor, while focusing on company initiatives close to his heart, such as the recently announced Hypothesis University. 

“Maria played a critical role in supporting talent while growing and establishing Hypothesis’ reputation as a go-to strategic partner for incredible clients”, commented Seltzer.

“Hypothesis has never been stronger and is in the best possible hands with her at the helm. I look forward to where Maria and her incredibly gifted leadership team will take us from here.” 

Stark added: “These are challenging times for CEOs. They require empathy as well as expertise, and courage as well as inspiration.

“Maria and the diverse Hypothesis leadership team that has been formed over the past few years to support her are perfectly poised to undertake these challenges. I wish her tremendous success and know that Hypothesis and our clients are extremely fortunate to have her in this role.”